PLATE XXII.— Galerucella Rugosa. 
1. Eggs on leaf, x 3. 
2. Larva on leaf, x 3. 
3. ,, 48 hours after hatching, x 20. 
4. ,, full grown, x 6. 
5. Pupa, x 8. 
6. Female, x 8. 
7. Male, x 8. 
